My sorceror is not maxxed on SP, but could have up to 2003 currently with his 32 charisma, and my best guess is that could be boosted to about 2030 with 34 charisma. I can't remember how many SP an extra 2 charisma will supply at level 14.
I do not have a ring of spell storing, thus that is not involved in the calculation.
Another question I'm posing: how many SP do the power drain gloves from the Abbot supply?
I know that the maximum SP attainable is by a 13sorc/1bard.
So, what is it? Both with, and without the ring of spell storing and power drain gloves?